ERROR: Unable to get device_id

Discussion created by krishraov on Jul 15, 2011
Latest reply on Jul 16, 2011 by krishraov
Can't get OpenCL to work on Win 7 and VS2010


I am using Visual Studio 2010 on a Dell Precision T3500 workstation. It has a Intel Xeon quad-core CPU and an ATI FirePro 4800 graphics card. I installed the latest AMD APP SDK and followed all the instructions given in the "Introduction to OpenCL Programming" guide and tried to get the "Helloworld" program running -- but it is not. It gives the error -- "unable to get device_id".


When I run the "clinfo" program, I get the following output:


C:\Program Files (x86)\AMD APP\bin\x86_64>clinfo
Number of platforms:                             1
  Platform Profile:                              FULL_PROFILE
  Platform Version:                              OpenCL 1.1 AMD-APP-SDK-v2.4 (59
  Platform Name:                                 AMD Accelerated Parallel Proces
  Platform Vendor:                               Advanced Micro Devices, Inc.
  Platform Extensions:                           cl_khr_icd cl_amd_event_callbac
k cl_amd_offline_devices cl_khr_d3d10_sharing

  Platform Name:                                 AMD Accelerated Parallel Proces
Number of devices:                               1
  Device Type:                                   CL_DEVICE_TYPE_CPU
  Device ID:                                     4098
  Max compute units:                             4
  Max work items dimensions:                     3
    Max work items[0]:                           1024
    Max work items[1]:                           1024
    Max work items[2]:                           1024
  Max work group size:                           1024
  Preferred vector width char:                   16
  Preferred vector width short:                  8
  Preferred vector width int:                    4
  Preferred vector width long:                   2
  Preferred vector width float:                  4
  Preferred vector width double:                 0
  Native vector width char:                      16
  Native vector width short:                     8
  Native vector width int:                       4
  Native vector width long:                      2
  Native vector width float:                     4
  Native vector width double:                    0
  Max clock frequency:                           3066Mhz
  Address bits:                                  64
  Max memory allocation:                         3220584448
  Image support:                                 Yes
  Max number of images read arguments:           128
  Max number of images write arguments:          8
  Max image 2D width:                            8192
  Max image 2D height:                           8192
  Max image 3D width:                            2048
  Max image 3D height:                           2048
  Max image 3D depth:                            2048
  Max samplers within kernel:                    16
  Max size of kernel argument:                   4096
  Alignment (bits) of base address:              1024
  Minimum alignment (bytes) for any datatype:    128
  Single precision floating point capability
    Denorms:                                     Yes
    Quiet NaNs:                                  Yes
    Round to nearest even:                       Yes
    Round to zero:                               Yes
    Round to +ve and infinity:                   Yes
    IEEE754-2008 fused multiply-add:             No
  Cache type:                                    Read/Write
  Cache line size:                               64
  Cache size:                                    32768
  Global memory size:                            12882337792
  Constant buffer size:                          65536
  Max number of constant args:                   8
  Local memory type:                             Global
  Local memory size:                             32768
  Kernel Preferred work group size multiple:     1
  Error correction support:                      0
  Unified memory for Host and Device:            1
  Profiling timer resolution:                    333
  Device endianess:                              Little
  Available:                                     Yes
  Compiler available:                            Yes
  Execution capabilities:
    Execute OpenCL kernels:                      Yes
    Execute native function:                     Yes
  Queue properties:
    Out-of-Order:                                No
    Profiling :                                  Yes
  Platform ID:                                   0000000002EDD118
  Name:                                          Intel(R) Xeon(R) CPU
W3550  @ 3.07GHz
  Vendor:                                        GenuineIntel
  Driver version:                                2.0
  Profile:                                       FULL_PROFILE
  Version:                                       OpenCL 1.1 AMD-APP-SDK-v2.4 (59
  Extensions:                                    cl_khr_fp64 cl_amd_fp64 cl_khr_
global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int3
2_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_
khr_int64_extended_atomics cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ex
t_device_fission cl_amd_device_attribute_query cl_amd_vec3 cl_amd_media_ops cl_a
md_popcnt cl_amd_printf cl_khr_d3d10_sharing


Can someone help me out here? I am stuck .... Thank you !